Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 230828
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
127 AM PDT WED AUG 23 2017


...................................

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 22 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         81    445 PM  97    1999  80      1       80
  MINIMUM         56    611 AM  45    2006  52      4       54
  AVERAGE         69                        66      3       67

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.00
  MONTH TO DATE    T                                         0.00
  SINCE OCT 1     37.11                                     18.86
  SINCE JAN 1     28.16                                     14.67

DEGREE DAYS
 HEATING
  YESTERDAY        0                                         0
  MONTH TO DATE    2                                        17
  SINCE JUN 1     27                                        80
  SINCE JUL 1     10                                        54

 COOLING
  YESTERDAY        4                                         2
  MONTH TO DATE   72                                        15
  SINCE JUN 1    306                                       100
  SINCE JAN 1    340                                       111
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION  SW (240)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     7.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          1200 AM
 LOWEST     42           500 PM
 AVERAGE    68

..........................................................


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   81        96      2010
 MINIMUM TEMPERATURE (F)   52        45      2005


SUNRISE AND SUNSET
AUGUST 23 2017........SUNRISE   631 AM PDT   SUNSET   751 PM PDT
AUGUST 24 2017........SUNRISE   632 AM PDT   SUNSET   750 PM PDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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